STARFISH SAPONINS .34. NOVEL STEROIDAL GLYCOSIDE SULFATES FROM THE STARFISH ASTERIAS-AMURENSIS

A reinvestigation of the exts. from the starfish A. amurensis has led to the isolation of 8 novel steroidal glycosides along with major amts. of the already reported glycoside B2, ovarian asterosaponin-1, and ovarian asterosaponin-4. Four novel compds. are asterosaponins assigned as the asteroside A (I), B (II), C (III), and D (IV). Main differences among the novel asterosaponins reside in the steroid side chains. The 2nd group of saponins consists of 4 new polyhydroxysteroidal xylopyranosides, designated amurensosides A (V), B (VI), C (VII), and D (VIII)